4-2d<4
-2d>0
d>0 the answer to the question
Total expenses;
1/2*60=30
2/3*30=20
Total = 50
Remainder;
60-50
<span>£</span>10
f(x) + c -> up by c
f(x) - c -> down by c
f(x + c) -> left by c
f(x - c) -> right by c
For y = f(x + c), the y value of x now takes the y value of the function of x + c, or the one c to the right of x, shifting the entire graph left by c.
According to the given expected value, it is found that Marcos' statement is correct.
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The interpretation of the <em>expected value</em> is that <u>over a large number of trials, the average value will be close to the expected value</u>.
In this problem:
- The expected value is of $25.
- Hence, if many of the plans are sold, the average profit per plan will be of $25, and Marcos' statement is correct.
About Amaya's statement, among groups of 1,000 customers there can be variations, hence, she is incorrect.
You can learn more about the interpretation of the expected value at brainly.com/question/25928679
2/3- divide both numerator and denominator by its common factors which in this case is 4 (following this would get you 2/3)
4/6- divide both numerator and denominator by its common factor which in this case is 2 (following this would get you 4/6)
16/24- multiply both the numerator and denominator by 2
